All Boxes ready to go, have been pushed to github

[mvellend]

I also uploaded a PDF of the current Chapter 4 in the "root" ecotheory directory

[aammd]

This worked! I'm assigned and on the job. I'll make those .Rmd files ASAP.

[aammd]

OK Mark, added all the .Rmd files which correspond to each of the .R files you added. in the ./vignettes directory. See this commit: 32c16ec